I have a Coherent 800 nm, 12W output laser. I need to use it to do some dot matrix printing. I plan to use ~1 ms pulses. The laser needs ~2 V and ~30A. I want to build a power supply. My thoughts were to use a crazy large car audio cap used to keep the amplifier running during a bass pulse. I was going to use a MOSFET and adjust the gate to keep the capacitor charged to 2V. I would use another MOSFET and a square wave to switch the laser. I would need about 100 pulses over about 3 seconds. The process will be repeated every minute.
Has anyone tried anything similar with any success or is there a better way to generate high current low voltage switching for these laser diodes. Is there an off the shelf, low cost system already available?
Thanks.
Has anyone tried anything similar with any success or is there a better way to generate high current low voltage switching for these laser diodes. Is there an off the shelf, low cost system already available?
Thanks.